Every puzzle symbol and many other puzzle mechanics are items.
This includes symbols such as "Dots", "Black/White Squares", "Colored Squares", "Stars", "Symmetry", "Shapers" (coll. "Tetris Pieces"), "Erasers" and many more.
There is an option to turn these non-randomized panels off, called "disable_non_randomized" in your yaml file. This will also slightly change the activation requirement of certain panels, detailed [here](https://github.com/sigma144/witness-randomizer/wiki/Activation-Triggers).
## A note on starting inventory and excluded locations
In this randomizer, items added to start_inventory will be removed from the item pool (as many copies as specified).
It is also possible to add items to the starting inventory that are not part of the mode you are playing.
In this case, the generator will make its best attempt to adjust logic accordingly.
One of the use cases of this could be to pre-open a specific door or pre-activate a single laser.
In "shuffle_EPs: obelisk_sides", any Environmental Puzzles in exclude_locations will be pre-completed and not considered for their Obelisk Side.